Published May 15, 1988
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Journal Article
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Calorimetric observations of amorphous and crystalline Ni-Zr alloy formation by solid-state reaction
- Creators
- Cotts, E. J.
- Wong, G. C.
- Johnson, W. L.
Chicago
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Abstract
Differential scanning calorimetry and x-ray diffraction are utilized in a study of solid-state vitrification of multilayered composites of Ni and Zr. In order to understand better and optimize the amorphizing reaction, we have examined the kinetics of competing reactions: the formation and growth of crystalline intermetallic compounds. The value of the activation energy, Ec, of the initial crystallization of the growing amorphous phase is determined to be Ec=2.0±0.1 eV, establishing an upper limit on the thermal stability of the amorphous-diffusion couple.
Additional Information
©1988 The American Physical Society. Received 7 August 1987. This work was supported by the U.S. Department of Energy under Contract No. De-AT03-81ER10870. We thank M. Atzmon and K. Samwer for helpful discussions.Files
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- 3917
- Resolver ID
- CaltechAUTHORS:COTprb88
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